Fiqh-us-Sunnah Volume 5, Hajj and ‘Umrah, Fiqh 5.073.

Section : Covering One’s ‘Awrah.

The male should cover from the navel to the knee, and the female all her body except her face, hands and feet. (Tran.) Abu Hurairah reported: “During the Hajj for which Abu Bakr was appointed the leader by Allah’s Messenger (peace be upon him), before the Farewell Hajj, Abu Bakr sent me with a group to announce the Day of Nahr – the 10th of Zhul-Hijjah – and to proclaim: ‘No idolater nor any naked person shall be allowed to perform tawaf of the Ka’bah after this year.” (Bukhari and Muslim)